US540238A - Machine for making paper cones - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

J. o. GORAM. MAGHINE PGR MAKING PAPER CONBS. No.54o,238.

Patented JuneY 4, 1895.

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J. C. CORAM.

'MACHINE FOR MAKING PAPER CONBS.- No. 540,238.

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J. C. GORAM. MACHINE FOR MAKING PAPER CONBS.

No. 540,238. Patented June 4, 1895.

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` (No Model.) 4 Sheets-Sheet 4.

J. C. CORAM.

MACHINE FOR MAKING PAPER CONBS. No. 540,238. Patented June 4, 1895.

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Unirse @rares PATENT @erica JOI-IN C. CORAM, OF LOWELL, MASSACHUSETTS.

MACHINE FOR MAKING PAPER CONES.

SPECIFICATION forming part of Letters Patent No. 540,238, dated J' une 4, 1895.

Application filed July 27, 1892.

To all whom t may concern:

Be it known that I, JOHN C. CORAM, a citi- Zen of the United States, residing at Lowell, in the county of Middlesex and Commonwealth of Massachusetts, have invented a certain new and useful Improvement in Machines for Making Paper Cones and Tubes, of which the following is a specification.

My invention relates to machines for making paper cones and tubes and consists in the` combinations and devices hereinafter described and claimed; the same being adapted to take a previouslyshaped paper blank, wind it about a spindle, apply paste to the outer side of the blank while the same is being wound, to lay the lap, to smooth the outer surface of the cone or tube and remove surplus paste, and to strip the finished cone or tube from the spindle.

In the accompanying drawings, on four sheets, Figure 1 is a front elevation of a machine for making cones or tubes provided with my improvement; Fig. 2, a plan of the same; Fig. 3, a vertical section, on the line 3 3 in Fig. 2, of the bed, parts of the legs, the main shaft and lower shaft, the spindle-supporting yoke, and a front elevation of the feedtable, its supporting and operating parts, said spindle, part of the mutilated gear which rotates said spindle, the pinion engaged by said gear, and part of the bevel-gear fast on said spindle, omitting the bevel-gear which engages the bevel-gear above named and which is one with or fast to said pinion; Fig. 4, a plan of part of the bed, the feed-table, and its gages andl operating mechanism, including the lower shaft, the spindle and bevelgears, and the spur-gear fast on said lower shaft; Fig. 5, a plan of the feed-table and a cone-blank arranged thereon; Fig. 6, a section of the feed-table and blank on the line 6 6 in Fig. 5; Fig 7, a plan of a blank; Fig. 8, a left-end elevation of the spindle and stripper; Fig. 9, an isometric view of a finished cone or cone-tube; Fig. lO, a section of the table, the upper and lower shafts, one of the supporting-levers of the paste-roll, and spindie-supporting yokeon the line 10 10 in Fig. 2, showing in front elevation the other supporting-lever of the pasteroll, the restoring spring and rod of said last-named lever, said paste-roll, the spindle, the cam, lever, and

Serial No. 441,387. (No model.)

rods which raise and lower the spindle, the combined piston-rod and cam-rod, means of varying the length ofsaid combined rod, mechanism for rotating said spindle, the stripperbar, stripper, stripper-lever, the stripper conmeeting-rod, and stripper cam-rod; Fig. 11, a front elevation of the strippercam and camrod, the lower -part of the stripper-lever, and 5c a vertical cross-section ot' the lower shaft and -of the hanger which supports said stripperlever; Fig. 12, a section on the line 12 l2, Fig.

4, of the upper shaft, the spindle, and its journal-box, and a rear elevation of the piston, combined piston and cam-rod, and the cam which operates said piston; Fig. 13, a rearelevation of the mutilated gear and its stopflange, the stopout of engagement with said flange, and the bevel-gear which rotates with 7o said stop; Fig. 14, the same as Fig. 13, except lthat the stop is in engagement with the stop-' flange; Fig. 15, a vertical section of the bed and paste-pool, showing the paste-box in leftside elevation; Fig. 16, a front elevation of part of the bed, pool, and paste-box, a part of said box being in vertical section on vthe line 16 16 in Fig. 15; Fig. 17, a left-end elevation of a part of the bed, the slicker and its holder,

its connecting-rod, a part of the slicker-lever, 8o the spindle, paste-roll, and a part of the stripper; Fig. 18, a section of the stripper, its holder, and a part of the stripper-lever at right angles to the shaft of said holder and a side elevation of its connecting-rod; Fig. 19, a vertical section of the bed and lower shaft on the line 19 19 in Fig. 2 and a front elevation of the stripper-cam, its cam-rod, stripper-lever, and connecting-rod.

The horizontal bedA of the machine herein 9o described is supported upon suitable legs a and supports all the other parts of the machine. In stands a turns the horizontal upper or main shaft B above said bed A and in hangers a2 below said bed the lower shaft B 95 turns, said shafts B B being parallel and connected by equal gears b b fast on said shafts respectively.

The horizontal feed-table C (see Figs. l to 6) is almost the shape of a quadrant of a cir- Ico cle and is secured by means of the projection c, eccentrically to the top of a vertical shaft c', turningin a pipe-box c2 which reaches down through the bed A, said shaft c' having at its lower end a forwardly-extending arm c3, the free end of which is jointed to one end of the. feed cam-rod c4, the other end of said cam-rod having a guide-fork c5 which receives and has a sliding fit on the lower shaft B. The cam or cam-disk c6 is fast on said lower shaft B and is provided with" a cam-groove c7, which receives a stud cs projecting from the cam-rod c4, so that the rotation of the lower shaft causes said feed-table C to have an oscillating motion in a horizontal plane. The cam-groove c", as shownv in Fig. 3, has two portions o9 C10, each concentric with the cam-disk c6 and lower shaft B and each measuring about the same angular distance, these portions c" C10 being respectively farthest from and nearest to the center -of said camdisk so that the feed-table C rests at each end of its traverse for about one fourth of the time of revolution of said cam-disk c7, the extreme front and rear positions of said feed-table being shown in Figs. 2 and 4, respectively.

The shape of the blank C is shown in Fig. 7, it having two curved edges which are (except as hereinafter stated) the arcs of concentric circles and two straight edges which are parts of radii of the larger circle, the lengths of the ares depending upon the number of thicknesses of paper to be given to the walls of the tube and the lengths of the straight sides of the blank being the length of the slant side of the tube.

The blank C of thick paper or straw-board is placed on the feed-table so that its rear edge overlaps the rear straight edge of saidfeed-table as shown in Fig. 5, when said feedtable is in the position shown in Fig. 2, said blank being placed against the vertical parts of the gages e cl2, with its overlapping vpart in the rear of its proper position and drawn forward untilthe rear radialside c13 of a notch 014 in the outer curved edge of the paper is drawn against the vertical back end of the inclined stop 015, said stop being secured on and movable with the rear gage czand serving to determine the distance to which the blank shall project beyond the rear straight edge of the feed-table. The gages c11 012 are angle-pieces, adjustable radially on said feedtable by means of slots c16 o17 in their hori- Zontal parts and screws 018 019, passing up through said slots into the bottom of said feed-table, to enable blanks of different sizes to be placed on said feed-table. Vv'hen the feed-table is swung backward to its extreme limit, the rear edge of the blank is carried over the paste-roll D and to the rear of the same.

The pasteroll D is a conical idle-roll, having a corrugated or roughened surface to take up the paste and provided with yielding bearings and with journals d d', supported in levers d2 d3 (Figs. l, 2 and 10,), pivoted in stands a3 a4 on the bed A, said levers d2 d3 being substantially alike, except that being, for convenience, arranged at about right angles to each other. The journal d rests in an offset or lateral extension d4 of the lever d2 while the journal d is supported upon the lever d3 at right angles thereto. The end of each su pporting lever d2 d3, farthest from the pasteroll D is drawn downward by a spring d5, su rrounding arod d6 which hooks over said lever and slides vertically in a hole in the bed A, said spring being compressed between the bottom of said bed and a washer di', also surrounding said rod and adjustable thereon, to vary the compression of said spring, by a nut d8, turning on said rod below said washer, and the downward movement ofsaid rod d6 being limited by a collar di on said rod above said bed A. The blank C when thus moved backward over the paste roll extends back of said roll and above the slicker E, hereinafter described, and below the conical spindle F which is then in the raised position shown in Figs. 3 and 10, but immediately descends upon the blank pressing the latter firmly down upon the yielding paste-roll D, the blank being compressed between said spindle and pasteroll by the expansive power of the springs d5, above described.

Thespindle F (Figs l to 4, l0 and l2) is made in two parts ff', abodyf, turningin a two-part thrust-box or journal-box f2 having internal annular groovesf3 to receive corresponding collars f4 on the body f, in a well known manner, and the hollow mandrel, former or spindle proper f on which the blank C is rolled into a cone or tube, the part f being detachable from the lbodyf, to facilitate the construction of the spindle and to allow ofv the use of spindles or formers of different pitches or lengths, the part f havinga reduced shank f5 (Fig. l2) externally threaded and entering a threaded hole f6 in the bodyf. The thrust-box f2 is supported on a yoke f7 (Fig. 2) formed in one with the lower half of the thrust-box f2, said yoke having journal-boxes fsfg (except that they are supported by instead of supporting the mainshaft) in which the main shaft B turns freely and which allow said yoke to swing on said main-shaft, one branch flo of said yoke extending beyond said shaft B and carrying a weight f to counterbalance the yoke and parts supported thereby.

The thrust boxf2 (Fig. 12) is provided with an earf12 tolwhich is jointed one end of a connecting-rod fls, the other end of said rod' fbeing jointed to one end of a lever f14 having its fulcruin on the hanger a5 and the other end of said lever f14 being jointed to thelower end of the cam-rodf15. The upper end of the cam-rod f15 is forked at fw, to receive and be guided by the lower shaft B and a stud f17 projects from said cam-rod f15 into the camgroove]E18 of the cam-diskf19 fast on said lower shaft. (See Fig. l0.)

The cam-groovef18 has two portions fiofil concentric with the shaft B, the shorter concentric portion f2 holding the spindle raised while the cone or tube is being stripped from the spindle and a new blank is being fed,and

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the longer concentric portion f21 holding the spindle down and pressing the blank, or tube or cone being formed, against the paste-roll.

The partf of the spindle on which the blank is rolled is hollow, as shown in Fig. 12, and said spindle is provided with a straight row of perforations f2?, arranged in the plane of the axis of the spindle at the back of the spindle when said spindle is iirst applied to the blank and the hollow of the spindle-part f is cylindrical atf23 near the bodyf of said spindle and contains a piston f24, the pistonrod f25 of which extends through the bodyj` and is adjustably connected to the cam-rod f26 by means of a nut f27 which turns in a slot f28 in said cam-rod and engages the threaded end part of said piston-rod, in an obvious manner, the piston-rod and cam-rod being in line with each other and being in effect a combined piston and cam-rod adjustable in length.

The cam-rod fz is substantially like the cam-rod f, being forked to receive and to be guided by the main shaft B and has a laterally-projecting stud f29 which` enters a camgroove fao in a cam-diskf31, fast on said main shaft, the rotation of said cam-disk causing the piston f24 to have a reciprocating motion in the spindle, the piston resting for a short time at the end of the return stroke or while the finished cone is being removed from the spindle and While the spindle is being lowered upon the blank, the stud f29 being then in the concentric part]052 of the cam-groove, and resting for aishorter time at the end of the exhaust stroke while the cone is being formed, said stud j being then in the concentric part f33 of said cam-groove. `The exhaustion of the air from the spindle causes the paper blank near its rear edge to adhere rmly to the spindle over the perforationsf22, so-that when the spindle is rotated the blank is drawn from the table and Wound around;

the means described below, paste being ap-A plied to the blank by means of the paste-roll D which rotates by frictional contact with the blank and runs in a pool 0r tray H, in which said paste-roll is partly submerged, the paste being kept at a nearly constant height in said pool by a supply from the paste-box h (Figs. 1, 2, 15 and 16), said paste-box being filled with paste above the top of said pool and being provided with a gate h', sliding in suitable vertical ways h2 and opening into said pool, said gate being raised when required to increase the height of the paste in said pool,

A bevel gear f'34 is fast on the body fof the spindle and is engaged by another bevel-gear fs, formed in one piece with or secured concentrically to a spur-pinion f3 and to a stoppiece f37 and with them turning on a horizontal stud f38 which projects forward from the rear branch of the yoke f", (Figs. 1 to tand 10.) The pinion f36 is rotated intermittently by the mutilated gearf39 (Figs. 1 to 3, 10, 13, and 14), fast on the main shaft B, and through said bevel-gears, rapidly rotates the spindle while the spindle is in its lowest position. The mutilated gear]39 is provided with a concentric arcshaped stopfiange f, having an angular measurement sufficiently less than that of the untoothed portion of said gear ff to allow the stopf37 to be out of engagement with said stop-fiange when the pinion f3G is in engagement with the mutilated gear. The stop f37 has a concave face which fits the convex surface of the stop-flange and prevents the rotation of said stop and the pinion fsa and therefore-of the spindle during about one third of each revolution of the mutilated gearfs". y

The slickerE (Figs. 12, 17, 18, and 19) consists of a sheet e of rubber, leather or similar flexible material, supported on a lever e', so journaled in stands a6 a7 on the bed A as to bring the front edge of the sheet e parallel with the axis of the spindle F when said spindle is in its lowest position, said sheet e being held between said lever and the front end of a clamp e2, pivoted between its ends, at e3, in ears e4 on said lever e', the front end of said clamp being forced down on saidsheet e, or on a strip e5 of wood or metal resting on said sheet, by a screw e6 which turns in a threaded hole e7 in said clamp e2 near the rear end thereof and thrusts against the top of said lever e. A connecting-rod is formed in two parts e7 e8, the adjacent ends of which parts are screwthreaded at e9 el@ and are united by a right and left hand nut e, to enable the length of said rod to be varied, check-nuts cl2 als being arranged above and below the nut e to prevent its being accidentally turned. The connecting-rod e7 eS is jointed to the lever e and to a bell-crank lever 614 (having its fulcrum 615 on a hanger a8 supported by the bed A) by ball and socket-joints 616 ew, the lever e14 being given a reciprocating motion by the cam-rod e18 and slicker cam e, said cam-rod being like the cam-rods e4 f15 above described and like them guided by the lower shaft B on which said cam 619 is fast. A

stud @20 on the cam-rod @18 projects into the' cam-groove of the cam @19 and, when the paper blank is rst fed over the paste-roll, as above described, said stud is in the part 621 of said groove, said part being concentric with and nearest the shaft B and the slicker being in its lowest position. As soon as the spindle and paste-roll grasp the blank, the stud e2@ enters the part e522 of the cam-groove, raising the front edge of the slicker and laying the rear edge of the blank against the back of the spindle F and over. the perforations f22, just before the air is exhausted from the spindle. Where the spindle begins to rotate, the

slicker rises with the blank and above the spindle, as the receding part @23 of the camgroove acts on the stud e2", and remains above ICO IIO

4 alleges and out of contact with the blank untilvthe paper iswound one turn and a part of another turn about the spindle, said stud e20 being meanwhile in the concentric part 924 of said cam-groove, after which the part c25 of said cam-groove brings the slcker against the paper where it remains until the concentric part @26 of the cam-groove passes the stud e211, laying the successive turns of paper smoothly on the preceding turns, pressing the outer lap down and removing the surplus paste from the paper or tube. The tube being finished, the spindle F is raised, as hereinbefore described, and the tube is removed from the spindle by means of a reciprocating stripper G, (see Figs. 1, 2, 8, lO, 11 and 17,) the same being a plate of metal, provided at its lower end with a downwardly-opening slot Q, the lower end Q of said slot being wide enough to admit the reduced neck f41 of said'spindle between the tube-shaping surface of said spindle and the thrust-box f2, and said slot above its lower end being enlarged, at Q2, to fit the short cylindrical part f42 of said spindle.

The stripper G is bolted, at Q8, to a slide Q4 which is given a longitudinal movement in stands a8 a9 by means of the stripper-cam Q5 and stripper-lever Q6, immediately after the spindle reaches its highest position. The stripper-cam g5 is fast en the lower shaft B and is provided with a cam-groove Q7, the greater portion Q8 of which is at a distance from/and concentric with said shaft B and the remaining portions Q9 Q1o of which suddenly approach and recede from said shaft, (see Fig. 11;) but this is not material in respect to the portion Q10, because the return 'movement of the stripper may occupy the whole time during which the tube is being wound.

The cam-rod Q11 is substantially like the cam-rods 04]15 61.8, being guided in a similar manner by the lower shaft, and is provided with a stud Q12 which enters said cam-groove Q7, one end of said cam-rod Q11 being pivoted at Q13 to the stripper-lever Q6 above its fulerum Q14. The stripper-lever is pivoted on the hanger 0.10 and its upper end is jointed, at Q15, to one end of the connecting-rod Q16, the other end of said rod Q16 being jointed to the slide Q4 by a pivot Q17, adjustable by well known means in a longitudinal slot Q18 in said slide, to adjust the starting and stopping points of the stripper with reference to the highest position of thespindle F.

I claim as my invention- 1. The combination of the paste-roll, the slicker, the Spindle, means of rotating the same and means for lowering said. spindle upon a blank, means of securing an edge of said blank to said spindle and means of subsequently raising said slicker against said blank to lay the edge of said blank against said spindle, as and for the purposespecied. 2. The combination of the paste-roll, the

slicker, the feed-table, arranged to carry a side of a blank supported on said table over said paste-roll and slicker, the spindle, means of rotating the same means of lowering said spindle upon said blank, means of securing an edge of said blank to said spindle and means of subsequently raising said slicker against said blank to lay the edge of said blank against said spindle, as and for the purpose specified.

3. The combination of the swinging table, having radially-adjustable gages, the spindle means of rotating the same, means of securing an edge of av blank to said spindle and paste-roll, as and for the purpose specified.

4. The combination of the swinging table having radially-adjustable gages, the spindle,

vmeans of rotating the same, means of securing an edge of a blank .to said spindle the paste-roll and the slicker, as and for the purpose specified.

5. The combination of the swinging table,

having gages, one of said gages having an inclined stop, having a vertical back end, secured thereto, to enter a notch in the blank carried by said table, to determine the distance to which such blank shall project beyond the back of said table and to enable the front side of said notch to be drawn over said stop, the paste-'roll the spindle, means for securing the edge of the blank to said spindle and means for rotating said spindle, as and for the purpose specified.

6. The combination of the intermittentlyrotating spindle, having air-inlets in the side thereof, and a reciprocating piston, arranged in said spindle, to exhaust the air from said spindle and to cause a blank to adhere to said spindle, as and for the purpose specified.

7. The combination of the intermittentlyrotating hllow spindle, having air-inlets in the sides thereof, the slicker, means of raising said slicker to lay the edge of a blank against said spindle over said air-inlets, and an intermittently -reciprocating piston arranged in said spindle, to exhaust the air from said spindle and to cause a blank to adhere to said spindle, as and for the purpose specified.

In witness whereof I have signed this specification, in the presence of two attesting witnesse's, this 28th day of June, A. D. 1892.

JOHN C. CORAM.

Witnesses:

ALBERT M. MOORE, MYRTIE C. BEALs.

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